ZERO RESISTANCE AMMETER零内阻电流计

 

ZERO RESISTANCE AMMETER零内阻电流计

MODEL ZM3 FOR FIELD APPLICATIONS   现场应用ZM3

ACCURATE 精准度

As public
scrutiny toward pipeline integrity grows, regulators are frequently requesting
that operators validate corrosion prevention data to prove that their assets
are protected from failure. This means that in many situations, legacy
measurement techniques are no longer sufficient and there is a need for
validation to avoid ambiguity.

This need for validation led to the
development of Corrosion Services CPMP IR Free DC Coupon and the ZM3 Zero
Resistance Ammeter. Used together, these tools provide a highly accurate
indication of current flow to the pipeline that corresponds to corrosion
protection levels, and validates the basic surface measurements typically
gathered during pipeline surveys.

随着公众对管道完整性监督的深入,监管机构通常要求运营商验证防腐数据,证明其资产是受保护的,没有失效。这意味着,在许多情况下,传统的测量技术不能满足要求,有必要进行验证以避免歧义。

验证的需要导致腐蚀服务商CPMPIR降极化探头和ZM3零内阻电流计的发展。一起使用,这些工具提供了一个高度精确流向管道电流的指示,这对应了防腐水平,并验证了在管道检测期间基本的表面测量。

MEASUREMENT测量

The amount of
current that is discharged off the validation coupon is typically very small
and measurement tools require micro amp resolution. Conventional ammeters are
inadequate for reading small currents since the loading effect of the meter
adds an error value to the reading. The ZRA overcomes this loading effect and
provides an extremely precise and accurate indication of protective current.

流经试片的电流往往较小,不容易检测到,测量工具需要微安的分辨率。该设备(ZRA)克服了这一问题,可以测量很小的电流。由于电流表的负载效应从读数中添加一个错误值,传统的电表不能够读取小电流。ZRA克服了这种负载效应并提供了一个非常精确的保护电流指示。

RANGE: 0 2 mA and 0 20 mA

RESOLUTION: 0.1 μA on 2mA scale 1.0 μA on 20mA scale

ACCURACY: Better than 0.5% over entire
range

DIMENSIONS: 300 x 250 x 120 mm

(11.8 x 9.8 x 4.7 Inches)

WEIGHT: 1675 g (3.7 lbs.)’

测试范围:0-2mA 0-20mA

分辨率:2mA范围内为0.1微安,20mA范围内为1微安

精度:大于0.5%

尺寸:300×250×120mm11.8×9.8×4.7英寸)

重量:1675克(3.7磅)的

 

FEATURES
/ BENEFITS
特性/优点

Reduces ambiguity by
providing validation of corrosion protection data.

Confirmation of actual
parameters compared to design values.

Automatic operation,
with little specialized training required.

Rugged lightweight
construction for field use.

Stable over an
external operating temperature range of -10
ºC to +50ºC (14ºF to 122ºF).

Extended measurement
and temperature ranges available upon request.

•提供对防腐数据的验证,降低模糊度。

•与设计值比较,数据有效性高。

•操作简单,只需很少的专业培训。

•坚固、轻便,适合现场使用。

•可在-10+50摄氏度下使用。

•可根据需要扩展测量范围和温度范围。

 

 

 

未经允许不得转载:中国阴极保护协会 » ZERO RESISTANCE AMMETER零内阻电流计

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